Gramophone record-tablet.



GRAMOPHONE RECORD TABLET.

APPLICATION FILED JAN.17,1905.

Wiki/Lesmo JoSEPE SANDERS, or WASHINGTON, DISTRICT or coILIIIvIeIA.v

a GRAMoPHoNE Escono-TABLET.

Specification of Lettere ljatent.'

Matteson mea January 17, 1905. Serin No. 241,485.

.To ol/ZZ whom it may concern:

Beit known that I, JOSEPH'SANDERS, a

citizen of the United States, and a resident of Washington, in the District of Columbia, have invented certain new and useful Improvements in Gramophone Record-Tablets, of which the following is a specification.

My invention has reference to improvements in-gramophone record-tablets, one of the objects of the 'improvement being to' cheapen the manufacture of such tablets by saving a considerable percentage ofthe costly gramophoneY-record material which is used in the manufacture of the same.

Gramophone record-'tablets'are universally made in disk form'with a spiral record-groove impressed either in one or on both sides 'of the tablet, and it 'has' generally been the prac- .tice to either'de ress or elevate the central portion of the ta let, which contains no record-groove, and to secure to that central portion a: label bearin the name of the manufacturer, a legend escriptive of the ieceof music, song, or Speech that is recorde on the tablet and perchance also other information for the user. This label, which is ordinarily a disk of pa er having a distinctive color or rint, usua yextends over the edge of the e ressed or elevated blank center of the recor -tablet. Heretofore such record-tablets were made of a solid body of record material,

' in the `act of impressing the record-groove.

When the tablet was made with. av depressed center, a thin disk of steel or other metal was placed in the center of the record-matrix and of a thickness corresponding to the depth of" the depression which 'the tablet was lto have. When'the tablet was made with a raised,

was-made depressed, -every part of thetablet had to be subjected to the same uniform pres# sure, and this pressure must, 1n thenature of the case, be very great, -amountlng t`o as much as two thousand pounds per square inch. Now the depressed or elevated ortion of the tablet represents about one-flfth of the total area of the tablet, and one of the objects of my invention is to save the pressure which heretofore was expended upon this blank part of the tablet.

Figures 1, 2, 3 represent cross-Sectlons of record-tablets constructed in accordance with 1, which I make of cardboard or-other stil "l Patented April ic, 1907.

i my invention, the vertical scale of the draw-vV i ings being largely very exaggerated for the' librous material and which I impregnate, or

nearly so, with .a sizing, and preferably with.

a sizing that 'softens under heat, and hardens when cooled. I have used with advantages. Solution of rosin, into which the cardboard annulus is dipped. Of course other suitable sizing may be used; Upon the face of this cardboard annulus is a Sheet 2 of paper or other iiexible fibrous material, coated either on one or on both sideswith an exceedingly thin layer 3 of record material. l is cemented onto the cardboard ann eitherby the record material on its under side or by a separate cement or by the Sizing l in the cardboard if the same is of a kind that softens under heat, and this cementing is preferably, but not necessarily, accomplishedatthe Same timeas and bythe act of impressing the record-groove into the'surface( of the prepared paper by the matrix. In the large central openin of the cardboard annulus is a web 4 of. which is also sized, and preferabl with the same sizing that is em loyed-for t e annulus `1 and this web is fitte Vin place with its lower vsurfacel fiush with the under surface .of theannulus and with its upper surface below the `upper surface ofthe annulus,zas shown, and

This pa er illus a vthinner cardboard,

iszcemen'ted tovthe annuluspreferably, but

not necessarily, by and in the act lof im ressing the record-groove, since when this 1s be-4 ing done the cardboard andi also the matrix are heated, so that the resinous siz in the annulus and the web fuse together. mIt is not necessary to subject the web` ortion of the tablet to surfacefpressure, altIx moderate pressure may be exerted with advantage for reasons which presently appear.

would naturally be cemented into the al1- ough a very IOO l If the sizing em loyed is not of ak kind that will soften un erheat, the web nulus inv any other manner than hereinbefore i described The label is represented'in this drawing at- 5, and if the sizingemployed is of'4 a kind that softens under heat this label may be cemented onto theweb and overthe inner edge of the annulus by and during. the act of impressing the record-groove into the record material 3, and in this case a steel or other metal disk is used on the center of the matrix,

as is a common practice; but since the central part of the tablet constructed as here shown is already depressed this central portion need only be subjected to a very moderate ressure', just sufficient to flatten out the labe In this marmer a considerable saving of power is secured.. By reasonof the fact that with this construction the base of the tablet is made of two parts, the annulus and 1o the web, each of these parts may be more readil impregnated with the sizing than if a soli disk of cardboard were used. The layer of record material upon the paper annulus need not be thicker, butmay be thinner,

than one one-hundredth of an inch. The

same saving of record material I can also secure by dispensing with the aper annulus 2 altogether and applying the ayer 3 of record material directly to the surface ofthe card'- zo board annulus. Q "With this construction, the same as in the one where the coated paper annulus is enployed, the edge of the label becomes cen'ented onto the record material, and in both cases the label itself reinforces the connection between the central web and the cardboard annulus.

Fig. 2 represents the construction ofm improved tablet wherein the central web 4 is thicker than the annulus 1, so that its upper 3o surface slightly rises above the upper surface of .the annulus. In all other respects the construction is'the same as that-shown in 1; but when this construction is employed the central blank part of the record- 3 5 matrix must be turned out to the requisite depth-namely, to .a depth corresponding to rthe elevation of the central web above the upper surface of the annulus. In this case a so the prepared paper 2 may be dispensed 4o with and the record material 3 may be applied directly onto the cardboard annulus.

In Fig. 3 the construction of my improved tablet is shown, wherein both faces of the tablet are utilized-that vis to say, where a record is impressed upon each face. 5 In this y case the central web 4 is made considerably thinner than the' annulus, and it is so lodged within the annulus as to leave a central de-v pression on each side. In such case a pre- 5o pared sheet of paper is applied to each face of the annulus, and a label is applied to each face, as is clearly indicated in the drawings. When this' construction is employed, each of the two matrices which are used for impressin the record-groove on the two sides of the talet is provided with a central disk of steel or other metal and of a thickness correspondingsto the depth of the depressions on the two sides of the tablet.- In this case also the pre- 6o pared paper may be dispensed with and the record material directly applied to the cardboard annulus on each face thereof. The construction of the tablet in two prin cipal parts, the annulus and the central web,

secures some of the advantages of my invenbeforev the article is tion even in the case when the central web is neither thinner nor thicker than the annulus, but is of the same thickness, for even in that case only the annulus will be coated with the record material, thus saving the portion 7o which' would otherwise go onto the central blank lp art of the tablet. In such case the centra disk, whichis cutout to obtain the annulus, would after the annulus has been either coated directly wit'h record material or 7 5 after a sheet of paper coated with record mat'eri al has been applied to it'be replaced into the center of the annulus and cemented to the same eitherin the act of timpressing the lrecord-groove or separately before the record- 8o groove is impressed. With this construction, however, the savin of power secured in the construction of the forms of tablet hereinbefore described would be lost, since when the tablet is of uniform thickness all through 85 out the central part has to be subjected to the same ressure as the other parts.

, In all tfie forms f tablet herein set forth it is not necessary to impress the record-groove ut on the market or on 9o sale, since blank tab ets constitute complete articles of manufacture which can be furv nished to manufacturers for impressing rec? -ord1grooves therein.

The cardboard annulus itself prepared in 9 5 the manner hereinbefore described l and adapted to have a central web fitted into it and cemented thereto may be furnished to manufacturers either .with or without the central web already secured in place, so`that rec the prepared annulus is itself a complete arti cle of manufacture. y

Having now fully described my inven tion7 -I claimand desire to secure by Letters Patent- 1. A disk-shaped sound-record tablet consisting of'an annular'fibrous base having its inner and outer diameters so related as to in-y clude between them a surface approximately that of-a possible sound-record, a layer of :zo sound-record-receiving material on the annulus, and a disk-shaped insert of fibrous` material secured centrally in'and to the annulus.

2. A- disk-shaped sound-recordI tablet con- 115 sisting of an annular fibrous base impregnated with resin and carrying on one or bothl surfaces a thin'vlayer vof gramophone-record material, and a disk-shaped insert o f fibrous material secured centrally in and to -the an- 12o nulus.

3. A'gramophone tablet-blank composed of an annulus o'f-cardboard impregnated with sizing and having its inner and outer diameters so related as tovinclude a surface apf 12 5 proximately that of a possible sound-record, and a sheet ofpaper o r other .thin fibrous material coated with a thin 'layer of gramohone-record material and fast on one or lioth surfaces of the annulus. l

lIO

4. A gramophone record-blank composed of an annulus of fibrous material carrying on one or both surfaces a thin layer of gramophone-record material, and a central web of fibrous 'material fitted in and secured to said annulus.

5. A gramophone tablet-blank composed of an annulus of `cardboard or other stiff fibrous material im regnated With a sizing, and a central web o fibrous material thinner than the annulus and fitted to the latter.

6. A gramophone tablet-blank composed of an annulus of fibrous material impregnated with rosin and carrying upon one or both surfaces a thin layer of gramophonerecord material, and a central Web thinner than the annulus and fitted to the latter.

7. A gramophone tablet-blank consisting of an annulus of fibrous material impregnated 'with a sizing and carrying upon one or both surfaces a thin layer of gramophonerecord material, and a central Web of like fibrous material of different thickness than the annulus. and fitted to the latter.

8. A gramophone tablet-blank. consisting of anv annulusl of cardboard or other stiff fibrous material, sized with rosin and having on one or both surfaces a layer of paper or other thin fibrous material coated withl a thin layerV of gramophone-record material, and a central web of fibrous material fitted inand secured to said annulus.

9. A gramophone tablet-blank composed of an annulus of stiff fibrous material impregnated with a sizing and carrying on one or both surfaces athin layer of gramophonerecord material, and a thinner central web of like material impregnated with a sizing and fitted to the annulus, substantially as described.

10. A gramophone tablet-blank composed of a cardboard annulus impregnated With a sizing that softens under heat and carrying on one or both surfaces a thin layer of gramophone-record material, and a central web of s ized cardboard fitted to the annulus, substantially as described.

11. A gramophone tablet-blank, composed of a cardboard annulus impregnated'with a sizing that softens under heat and carrying on one or both surf aces a thin layer of gramophone-record material, and a central Web of g sized cardboard thinner than the annulus and'fitted to the latter, substantially as described.

12. A amophone tablet-blank composed of a card oard annulus impregnated with a sizing that softens under heat and bearing on one or both surfaces a sheet of paper or other thin fibrous material coated with a thin layer of gramophone-record material, and a central web of sized cardboard fitted toY the annulus, substantially as described.

13. A gramophone tablet-blank composed of a cardboard annulus impregnated with va sizing that softens under heat and bearing on one or both surfaces a sheet of paper or other thin fibrous material coated with a thin layer of gramophone-record.material, and a central web of sized cardboard thinner than the annulus and fitted to the latter, substantially as described.

14. A gramophone record-tablet composed of an annulus having a record-groove upon one or both surfaces,- and a-central Web of a different thickness than the annulus and cenf trally cemented to and Within the same, substantially as described.

15. A gramophone record-tablet consisting of an annulus having a record-groove on vone or both surfaces, and a central web thinner than the annulus, centrally cemented to and Within the same, substantially as described.

16. A gramophone record-tablet consisting of a stiff fibrous annulus carrying a record-groove upon one or both surfaces, with a central Web of like fibrous material of different thickness than the annulus and centrally cemented to and Within the same, substantially as described.

'17. A gramophone record-tablet consisting of an annulus of stiff fibrous material impregnated with a sizing and carrying upon one or both surfaces gramophone-record material with a sound-record impressed therein,

. and a central Web of like fibrous material of different thickness than the annulus and centrally cemented to and Within the annulus,

lsubstantially as described.

y18. A gramophone record-tablet consisting of an annulus of stiff fibrous material impregnated With a sizing that softens under heat and carrying gramophone-record material upon one or both surfaces, with a soundrecord groove impressed therein, and a central web of like fibrous and sized material of different thickness than the annulus and centrally cemented within and to the annulus, substantially as described.

19. A .gramophone record-tablet consisting of an annulus of cardboard impregnated With a sizing that softensunder heat and carrying on one or both surfaces gramophonerecord material impressed With a sound-record groove and a'central web of sized cardboard centrally cemented within and to the annulus, substantially as described. i i

20. A gramophone record-tablet consisting of an annulus of cardboard impregnated with a sizing that softens under heat and carrying upon one of its surfaces gramophonerecord material impressed With a sound-record groove and a central web of cardboard thinner than the annulus, flush with the under side of the annulus and centrally' cemented to and within the latter, substantially as described.

IOO

IIO

21. gramophone record-tablet consistv ing of an annulus of cardboard .impregnated with a sizing that softens under heat and car.- rying on one of its surfaces gramophone-record material impressed With a sound-record groove; a central Webof sized cardboard which is thinner than `the annulus and flush with the under side thereof and centrally cemented to andl Within the same, and a label cemented. onto the face of the central web and over the inner edge of the annulus, substantially as described.

22. A gramophone record-tablet consisting of an 7:mnulus of cardboard impregnated with a suitable sizing and bearing on one or both surfaces a sheet of paper or other flexible fibrous material coated with a thin layer of record'material having a sound-record impressed therein, and a central web of sized cardboard of different thickness than the annnlus and centrally cemented to and zo vWithinthe latter, substantially as described.

23. A gramophone record-tablet consisting, of an annulus of cardboard impregnated with a sizing that softens under heat and bearing on-one side a sheet of paper thinlyT coated vwith gramophone-record Imaterial `ing of an annulus of cardboard impregnated with a sizing that softens under heat, having 2 and a central Web of sized cardboard thinner 5 than the annulus and flush with the undervl 'side thereof and centrally cementedto and' on one side cemented to it a sheet of paper thinly coated With gramophone-record mate-l rial, a central Web of sized cardboard thinner than the annulus, flush with the under side thereof and centrally cemented to and `within the same, and a label cemented onto the face of the central web and over the inner edge of the annulus, substantially as described.

' In testimony whereof I h We signed my name to this specification in the presence of two subscribingwitnesses. f

JOSEPH SANDERS. Witnesses:

EDW'IN S. CLAnKsoN, F. T. CHAPMAN. 

